890403865

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{317}}^1\times {\mathrm{547}}^1$

素因数の和:961

約数の個数: 32

約数和(自身を含む): 1171054080

約数和(自身を除く): 280650215

約数列:

[1, 5, 13, 65, 79, 317, 395, 547, 1027, 1585, 2735, 4121, 5135, 7111, 20605, 25043, 35555, 43213, 125215, 173399, 216065, 325559, 561769, 866995, 1627795, 2254187, 2808845, 11270935, 13698521, 68492605, 178080773, 890403865]

約数ペア:

[(1, 890403865), (5, 178080773), (13, 68492605), (65, 13698521), (79, 11270935), (317, 2808845), (395, 2254187), (547, 1627795), (1027, 866995), (1585, 561769), (2735, 325559), (4121, 216065), (5135, 173399), (7111, 125215), (20605, 43213), (25043, 35555)]